I was very pleasantly surprised with the 2014 Silverado's rear camera system. Not only does it have great visibility, but it shows you where you are headed with a steering wheel controled grid that shows where you are about to back up into and it's tied into the backup sensors too.

I don't have the grids your talking about Steve, but I do have the camera and the '09 version of the nav screen. I don't use it a lot for backing, I like the mirrors; but, it is the best for backing under a trailer hitch. With very little practice, you can be in the exact place with the first attempt.